Tuesday, March 12, 2013

The Automobile and Physics

In this blog we will learn how you can take care of your automobile, from the inside to the outside. Now, in order to take care of your vehicle, it is necessary to understand how it works. And that involves a little bit of physics. So let's get started with today's lesson!

A car moves as a result of the use of energy. Now, energy can be found in different forms, such as in chemical form, heat form, light form, electrical form, radiation form, and mechanical form. To name some examples, when you turn on your stove, there is heat energy ready for cooking. A battery stores energy in chemical form and also animals and human beings also store energy chemically in the muscles. Furthermore, X-rays are a form of radiation energy.


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Now, the moment you push on an object, you are applying force to the object by using energy. This in turn, moves the object. When you apply force to an object and cause it to move, you are doing what is called in physics work. Now, this leads us to the formula W=D*F.

Now, there is another related formula which is stated as P=W/T. This is the power and it is the rate at which work is done. In other words, how fast is one able to do work of pushing a car. That is why power is able to be calculated by dividing the work done by the time it takes for that work to be done.

Now, in order to interpret power in common terms, power is converted to horse power and that is done by dividing power by 33,000. 

Now this is how it is tied together: a car engine burns fuel to produce energy, which is then used to apply force, causing the vehicle to move. The Engine causes a twisting force that turns the driving wheels, a force known as torque. This force is the one that, through other mechanisms, will be converted to the rotary motion to move the car., and thus performing work as the car moves.

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